2149432254 has 32 divisors (see below), whose sum is σ = 4778257440. Its totient is φ = 716216256.

The previous prime is 2149432249. The next prime is 2149432277. The reversal of 2149432254 is 4522349412.

It is a happy number.

2149432254 is a `hidden beast` number, since 214 + 9 + 432 + 2 + 5 + 4 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192924 + ... + 203760.

It is an arithmetic number, because the mean of its divisors is an integer number (149320545).

Almost surely, 2^2149432254 is an apocalyptic number.

2149432254 is an abundant number, since it is smaller than the sum of its proper divisors (2628825186).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2149432254 is a wasteful number, since it uses less digits than its factorization.

2149432254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14521 (or 14515 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 2149432254 is about 46361.9699106930. The cubic root of 2149432254 is about 1290.5492631240.

The spelling of 2149432254 in words is "two billion, one hundred forty-nine million, four hundred thirty-two thousand, two hundred fifty-four".